Health insurance giant Blue Shield of California and state tax authorities both came under fire for not disclosing seven months ago a landmark decision taking away the insurer's tax-exempt status, which had been in place since 1939.

Nonprofit insurer Blue Shield of California, already under scrutiny for its huge cash reserves and lack of disclosure, is refusing to say how much it's spending to acquire a Monterey Park insurance company and is seeking confidentiality from state regulators.

The Food and Drug Administration approved the first copycat version of a biologic drug in the United States, allowing a Swiss company to sell a knockoff of Amgen Inc.’s chemotherapy recovery drug Neupogen.